Global Patent Index - EP 0816074 B1

EP 0816074 B1 20021023 - Ink film thickness control method for ink supply apparatus

Title (en)

Ink film thickness control method for ink supply apparatus

Title (de)

Verfahren zur Regelung der Schichtdicke eines Farbfilms für eine Farbzuführeinrichtung

Title (fr)

Méthode de contrôle de l'épaisseur d'un film d'encre pour appareil d'alimentation d'encre

Publication

EP 0816074 B1 20021023 (EN)

Application

EP 97250194 A 19970625

Priority

JP 16714496 A 19960627

Abstract (en)

[origin: EP0816075A1] In an ink film thickness control method for an ink supply apparatus including an ink fountain (1) for storing ink (2), a plurality of ink fountain keys (4) whose aperture ratios are independently adjusted to supply said ink in said ink fountain, an ink fountain roller (3) to which said ink is supplied through said ink fountain keys, and an ink ductor roller (5) for supplying said ink supplied to said ink fountain roller to a printing plate (7) through an ink roller group (6) in accordance with a feed operation, the feed operation of said ink ductor roller is set in an OFF state when said printing plate is to be exchanged. A printing press in which said previous printing plate is kept mounted is operated without performing the feed operation of said ink ductor roller, thereby rotating said ink roller group. Printing is performed on a predetermined number of paper sheets using said previous printing plate to leave a first minimum ink film thickness distribution necessary for printing such that an ink film becomes thinner from an upstream to a downstream.

IPC 1-7

B41F 31/00

IPC 8 full level

B41F 31/02 (2006.01); B41F 31/00 (2006.01); B41F 31/04 (2006.01)

CPC (source: EP US)

B41F 31/00 (2013.01 - EP US); B41P 2233/11 (2013.01 - EP US)

Designated contracting state (EPC)

CH DE ES FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0816075 A1 19980107; EP 0816075 B1 20021023; DE 69716515 D1 20021128; DE 69716515 T2 20030717; DE 69716516 D1 20021128; DE 69716516 T2 20030626; EP 0816074 A1 19980107; EP 0816074 B1 20021023; ES 2185869 T3 20030501; ES 2185870 T3 20030501; JP H1016193 A 19980120; US 5884562 A 19990323; US 5921184 A 19990713

DOCDB simple family (application)

EP 97250195 A 19970625; DE 69716515 T 19970625; DE 69716516 T 19970625; EP 97250194 A 19970625; ES 97250194 T 19970625; ES 97250195 T 19970625; JP 16714496 A 19960627; US 88434897 A 19970627; US 88434997 A 19970627